About Hyfaidd
Lived 815 – 893 (aged 77–78). Hyfaidd was a sovereign.
Hyfaidd ap Bleddri (Hyfaidd son of Bleddri) ( – c. 892) was a king of Dyfed.
The Triad 68 - "Three Kings who Sprang from Villeins" - in the Red Book of Hergest (which dates from the fourteenth century), lists Hyfaidd among their number, meaning that his father Bleddri or Bledrig was considered to have been a serf rather than a member of Dyfed's old royal family claiming descent from Aed Brosc. Hyfaidd's mother was supposed to be Tangwystl, a daughter of the earlier King Owain ap Maredudd. Hyfaidd was said to have oppressed the clerics of Meneva (modern St. David's) and exiled Bishop Nobis, earning him the enmity of Nobis's kinsman, the historian Asser, Bishop of Sherborne. and the extinction of Hyfaidd's male line, Asser's more contemporary Life of King Alfred reports that Dyfed or Brycheiniog both fell under sustained attack from Hywel's uncle Anarawd and father Cadell. The expansionist policies of the sons of Rhodri Mawr meant that Kings Hyfaidd and Elise ap Tewdur of Brycheiniog both submitted to King Alfred of Wessex's overlordship in exchange for his protection.
Hyfaidd's sons Llywarch and Rhodri reigned after him, but were both dead by 905, both likely due to warfare. Rhodri ap Hyfaidd was killed by beheading in Arwystli. The kingdom of Dyfed was soon lost to Cadell's son Hywel who consolidated his realms as Deheubarth.
Children
Llywarch Rhodri
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
People in Hyfaidd's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Hyfaidd's
Frequently asked questions
Who was Hyfaidd?
King of Dyfed
When was Hyfaidd born?
Hyfaidd was born in 815.
When did Hyfaidd die?
Hyfaidd died in 893.
What was Hyfaidd's occupation?
Hyfaidd was a sovereign.
What nationality was Hyfaidd?
Hyfaidd's recorded nationality: Kingdom of Dyfed.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Hyfaidd. https://biography.guide/hyfaidd/
MLA: "Hyfaidd." Biography.guide, https://biography.guide/hyfaidd/.
Chicago: "Hyfaidd." Biography.guide. https://biography.guide/hyfaidd/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
Page generated 2026-09-27 05:06 UTC